GINGLYMACONCHA. PECTINID. 345 
Syst. Nat. 3324; Pult. Cat. Dorset. 30. t. x. f. 1-9; M. 
& R. Trans. Linn. Soc. viii. 97; Dill. Desc. Cat. 260 ; 
Turt. Conch. Dict. 130. 
Pecten varius, Penn. Brit. Zool. iv. 401. t. Ixi. f. 64; Brug. 
Encyel. Méthod. t. cexiti. f. 5; Mont. Test. Brit. 146 ; 
Flem. Edinb. Encyel. vi. 97; Lam. Hist. Nat. des Anim. 
sans Vert. vi. part. i. 175. 
Pecten Monotis, Da Costa, Brit. Conch. 151. t. x. f. 1-9. 
This species is not uncommon in the deep European seas ; it 
is found on most of our coasts, and is very abundant in the 
estuaries of Devon and Cornwall. 
The epidermis is generally simply coloured, as mentioned in 
the specific character ; but it is more or less subject’to great 
variation, from the mixing of some of these colours. 
4. PECTEN SINUOSUS. 
Shells highly oval, unequally bent; with very numerous, 
elevated, very narrow, rounded, rough ribs, armed with in- 
flexed spines; the interstices narrow and simple ; the epider- 
mis pink, pale fuscous, often marbled with white. Length one 
inch and a half; height two inches. 
Ostrea sinuosa, Lister, Anim. Angl.t.v.f.31; Coneh. t. elxxil. 
f.9; Petw. Gaz. t. lxiv. f. 2; Gmel. Syst. Nat. 3319 ; 
M. & R. Trans. Linn. Soe. viii. 99 ; Dill. Dese. Cat. 260; 
Turt. Conch. Dict. 130. 
Ostrea distorta, Pult. Cat. Dorset. 36. t. x. f. 3-6. 
Pecten Pusio, Penn. Brit. Zool. iv. 101. t. Ixi. f. 65; Donov. 
Brit. Shells, t. xxxiv. 
Pecten distortus, Mont. Test. Brit. 1. 148; Flem. Edinb. En- 
eycl. vu. 98. 
Pecten sinuosus, Lam. Hist. Nat. des Anim. sans Vert. vii. 
pert. 1.173. 
Pecten distortus, Da Costa, Brit. Conch. 148. t. x. f. 3-6. 
This species is very common in the British seas, and on the 
southern coasts of France, being found in fissures in rocks or 
in the sand of the sea. 
Qa 
